cwayne
04-27-2009, 09:42 AM
Hello Everyone, My 1989 Mitsubishi work truck is back under the weather. The engine is a 2.0 liter and one of the MCA Jet valves has failed. There is one per intake valve and is suppose to allow for a better air fuel mixture at idle? The jet valve screws in and can be removed / replaced without pulling the head. My question is... Can one just remove this secondary valve from the head and replace with a blank plug? Has this been done? Anyone know? I have read nothing positive about this secondary valve. Thanks, Wayne